Unicycle Formula the rider circulates in a track action. You can see its riding around the track is like drawing a circle. Actually it is like how we use a compass to draw a circle. The distance between the rider and the center is the radius, and the path of the riding is the circle.
In this experiment, it can be seen that the longer the rod is extended, the larger circle is drawn. In fact, the circumference of a circle is proportional to its radius.
• Understand the circular motion of the unicycle
• Build your own scientific measurement experiments